ping

The ChorusOS implementation of ping(1M), a basic tool for checking whether a
network connection is working or not, requests an ICMP ECHO_RESPONSE from the specified host and simply displays "host is alive" if the host responds within 20 seconds.

Example 6-5 Checking a Connection with ping

The following example uses the ping utility to check
the connection with the system having IP address 129.157.197.1: